ListView View Holder returning duplicate rows multiple times

Question

Here is my code,

View Holder Class :

private class ViewHolder {
            TextView tv1;
            TextView tv2;
            TextView tv3;
                    


        

Answer 1

I have updated your code. Try this.

 @Override
            public View getView(final int position, View convertView,
                    ViewGroup parent) {
                ViewHolder holder = null;
                View view = convertView;
                if(view == null){
                    view = lInflater.inflate(R.layout.add_productqty_listitem, parent,
                            false);
                    holder = new ViewHolder();
                    holder.tv1 = (TextView) view
                                .findViewById(R.id.add_product_label);
                    holder.tv2 = (TextView) view
                                .findViewById(R.id.Product_Code_label);
                    view.setTag(holder);

                }else{
                    holder = (ViewHolder) view.getTag();
                }
                Typeface font = Typeface.createFromAsset(ctx.getAssets(),
                            "gothic.ttf");

                    final ProductInfo product = data.get(position);
                    ctx.mProductIdList.add(product.getProductId());
                    try {

                        holder.tv1.setText(product.getProductName());
                        holder.tv1.setTypeface(font);
                        holder.tv1.setVisibility(View.VISIBLE);

                        holder.tv2.setTypeface(font);
                        holder.tv2.setVisibility(View.VISIBLE);
                        ...............
                        ...............
                        holder.edit_qty.setVisibility(View.VISIBLE);


                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                return view;

            }

Answer 2

Set the values once you get the holder object from getTag or first row initlization. so it should after if.. else condition checking Check the comment also i hve mentioned in getview Method after if.. else statment

@Override
            public View getView(final int position, View convertView,
                    ViewGroup parent) {
                ViewHolder holder = null;
                View view = convertView;
                if(view == null){
                    view = lInflater.inflate(R.layout.add_productqty_listitem, parent,
                            false);

                    holder = new ViewHolder();
                try{   Typeface font = Typeface.createFromAsset(ctx.getAssets(),
                            "gothic.ttf");
                        holder.tv1 = (TextView) view
                                .findViewById(R.id.add_product_label);

                        holder.tv1.setTypeface(font);

                        holder.tv2 = (TextView) view
                                .findViewById(R.id.Product_Code_label);
                        holder.tv2.setTypeface(font);

                        view.setTag(holder);

                    } catch (Exception e) {
                        e.printStackTrace();
                    }

                }else{
                    holder = (ViewHolder) view.getTag();
                }


     final ProductInfo product = data.get(position);
                    ctx.mProductIdList.add(product.getProductId());
      // set data , text and visibility option after getting holder from view's getTag()
holder.tv1.setText(product.getProductName());
                        holder.tv1.setVisibility(View.VISIBLE);
                        holder.tv2.setVisibility(View.VISIBLE);
                        ...............
                        ...............
                        holder.edit_qty.setVisibility(View.VISIBLE);
                return view;